Model release: Anthropic & Claude Fable

Model release ● Confirmed 85% confidence first seen

Type
Model release
Status
Confirmed
First seen
9 June 2026, 21:53
Latest source
12 June 2026, 15:00
Sources
4
Anthropic Claude Fable Claude Fable 5 Claude Mythos 5 Fable Claude Mythos Claude Opus 4.8 Cohere Gemma 4 12B Google Mythos NVIDIA Nemotron 3 Ultra OpenAI

Source coverage

Model release: Claude Mythos 5 & Claude Fable 5 The Algorithmic Bridge Model release: Anthropic & Claude Fable 5 Interconnects newsletter Model release: Anthropic & Claude Fable Ben's Bites Model release: Anthropic & Google Deep Learning Weekly